Chemistry Freeware Links

It is my intention to collect and post free and useful information and links. This link was brought to my attention by my collaborator and friend Dr. Bego Gerber from Chemists Without Borders.

This is a copy from the source that is sciencegeek:

On this page I, that is:,  post reviews and links to freeware chemistry programs available for download at other sites around the internet. All of the programs are ones that I have used, or currently use. None-the-less, I take no responsiblity for any problems you might experience as a result of installing any of these applications. Unless otherwise noted, the programs are for Windows systems.

ACD/ChemSketch 12 Freeware. ACD continues to release updates to the outstanding Chemsketch freeware. Chemsketch is an all-purpose chemical drawing and graphics software. Use templates or free-hand. Click and draw molecules, ions, stereobonds, text, polygons, arrows, lab aparatus, etc. Automatic calculation of MW and formula. See estimates of density, refractive index, molar volume, etc. ACDLabs also offers free downloads on several useful utilities and template packages that extend the usefulness of ChemSketch.

Molegro Molecular Viewer is a free cross-platform application for visualization of molecules in PDB, SDF, Mol2, and MVDML formats, as well as docking results from Molegro Virtual Docker. This cross-platform application runs under Windows, Linux, and Mac OS X. Features include automatic preparation of molecules, molecular surface and backbone visualization.

Jmol is a free, open source molecule viewer for students, educators, and researchers in chemistry and biochemistry. It is cross-platform, running on Windows, Mac OS X, and Linux/Unix systems. The JmolApplet is a web browser applet that can be integrated into web pages. The Jmol application is a standalone Java application that runs on the desktop. The JmolViewer is a development tool kit that can be integrated into other Java applications. Jmol is the applet that I use to run my Molecule Library. I recommend it enthusiastically!
Discovery Studio Visualizer 2.0 For those of you who remember WebLab Viewer, this is the updated version of that software from Accelrys. It includes a powerful molecular graphics viewer with superb rendering. An additional benefit is that graphics can be embedded in presentations such as Powerpoint using Object Linking and Embedding (OLE). You must complete a survey prior to downloading the software from Accelrys.
KnowItAll Academic Edition - In a continued commitment to academia, Bio-Rad is offering this completely FREE and fully functional software package to promote learning and research in the academic community. With the Academic Edition of KnowItAll, you can have it all and know it all for free-draw structures, perform IR and Raman functional group analysis, and generate high-quality reports. And best of all, this set of tools resides in one common interface, so it's easy to learn and easy to transfer data from application to application. The KnowItAll Academic Edition also includes free training movies to teach professors and students how to use and get the most out of the software. This program requires Windows 2000, or XP (Home or Professional).

The Virtual Laboratory from the ChemCollective is a new personal favorite. The online version is a java applet, but they now have a downloadable version that will run on any Windows desktop computer. The software allows a student or instructor to simulate many lab activities. Acid base titration, buffer chemistry, limiting reactant stoichiometry and solution equilibria are but a few of the simulations that are possible with this software. There is also an Authoring Program that allows instructors to design their own lab activities and add their own reagents.